[betwizzy]

I seen a thread on here about an aftermarket crank pulley breaking during a 1-3rd and that the stock crank pulley is fine. Considering his car was 600+.. Would an alumminum crank pulley be bad for a 2008 GTS?

 

[joey]

If the stock one is good, why would you upgrade it?

 

[betwizzy]

I heard that switching to alumminum can free up some hp.. Apparently the stock crank pulley is around 4lbs.. And the alumminum one is .5lbs.. Allowing for a more free spin? Seems like it makes sense to me but i dont want problems lol

 

[joey]

I would just leave it as it is, but thats just me. I dont think you are going to see any real gain with this. At least nothing crazy. Do you have other mods?

*EDIT* nevermimd, I see your other thread. Not sure what you are looking to accomplish but if its more power you want, then get the turbo kit for these cars.